Universal bolt lock



l-l.` H. KISTNER 2,098,249

UNIVERSAL BOLT LOCK Nov. 9, 193 7.

Filed Sept. 18, 1955 Patented Nov. 9, 19.37

PATENT OFFICE UNIVERSAL BOLT LOCK Herman H. Kistner, Baltimore, Md., asaignor to Kistner Lock and Appliance Company, Baltimore Md., a corporation of Maryland Application September 18, 1935. Serial No. 41,116

Claims.

This invention relates to rim locks for interior and exterior doors and windows, bolt locks for double-hung sliding windows, and sliding bolt 'v locks of both the rim and mortise type for 5 French doors and easement windows, and aims to improve the construction and extend the field of use of locks of these types.

The invention particularly relates to key-actuated locks Aof the sliding bolt type, and aims to strengthen and simplify the construction and mode of attachment of the lock to the door or window and to provide adequate safeguards against picking and jimmying locks of this type from either side of the door or window to which the lock may be afiixed.

An object of the invention is to make the bodies and small operating parts of such locks as die castings and stampings thereby reducing the machine work and cost and insuring uniformity and interchangeability of the product.

A further object of the invention is to provide a removable rim lock that can readily be changed from one location to another when unlocked but which cannot be removed when locked in place.

Other aims and advantages of the invention will be apparent from the description of the illustrative embodiments vshown in the accompanying drawing, wherein Fig. 1 is a sectional view through a door and jamb on the longitudinal axis of a lock of the sliding and rotating bolt type on the line of Fig. 2, showing an actuating key in side elevation;

Fig. 2 is a part section and part face view of the door and jamb at the lock, showing a cross-section of the lock on the line 2-2 of Fig. 1;

Fig. 3 is an end view of the lock shown in Figs. 1 and 2, looking at at it from the direction of the arrows, showing the caps in cross-section on the line 3-3 in Fig. 2;

Fig. 4 is a perspective view of the working parts of the lock shown in Figs. 1, 2 and 3, and the key, disassembled from the casing;

a In the form of the invention shown in Figs. 1

to 4 inclusive, of the drawing, the lock body is provided with apair of flanges I2, which may be secured to the face of a door frame or jamb, window rail or stile, or other swinging or sliding closure or closure fra-me by suitable means, as the screws |3. The lock body is also provided with a stud Il which ts into a thimble I5 or similar recess in the member to which-the body is secured. Thisstud prevents removal of the lock by any means when it is in locking position without destroying the door or frame or yother part to 55 which 1c is secured. A similar thimbie le may be let into the jamb, window frame, sill or other iixed part of the closure or closure opening to receive the end of the locking bolt |'I in locking position.

The bolt is normally held in retracted position by a coil spring I8 which is disposed within the body surrounding the bolt between a flange I9 at the locking end of the body and a flange 20 on the bolt .intermediate its ends. The bolt is held in projected or locking position byfapin 2| in its inner or key end which works in a slot or groove 22 terminating in an abutment 23 in a fixedpart of the body. In the form of device shown, the slot and abutment are formed in a sleeve 24 which is secured in place in the body by a screw 25, norf mally concealed in the flanged base of the body where it cannot be removed vwhen the body is fastened to its support. A notch 26 at the end of the abutment 23 away from the slot 22 cooperates with the pin 2| to retain the bolt in locked position.

The operating device or key 21 is of a size to enter the open end of the bore in the body, sliding within the bushing 24, and is socketed at its ends to t over the inner end of the bolt and provided with circumferentially spaced grooves 28 adapted to straddle the pin 2| so that the bolt may be engaged by the key and pushed into projected position until the pin registers with the abutment 23, whereupon the key and bolt may be turned to engage the pin in the recess 26 in locking position of the bolt. The key is also provided with spaced circumferential grooves 29, which kregister with spaced wards or pins 30 in the bushing 24 or fixed part of the body in the locking position of the key, thereby preventing the key from turning except when fully pushed in to lock or unlock the bolt. The pins 30 are circumferentiallyspaced to correspond with the longitudinal grooves 28 in the key so as to permit the key to be inserted in the open bore of the lock body. I

These wards or pins interfere with the insertion of a knife blade or other picking implement for engaging the pin 2| and manipulating the bolt to unlock it, Aand thus increase the security afforded by the lock against opening by other means than the right key. It is obvious that the number and spacingl 4of the pins 3U may be changed to provide different combinations to prevent the same key from opening other locks than those having the corresponding pin combination.

In the form of the invention shown in Fig. 1, the door 3| closes against a stop 32, which pre.- vents it from pulling away from the stud I4 so that there is no need for securing the latter in the thimble il. But for outwardly swinging French doors and other uses, it may be necessary to secure the stud i4 against pulling out of the thimble i5 or style of the door i! no thimble is used, and for this purpose a screw 33 is provided, extending through a hole drilled from the outer edge of the door style and through the thimble I! into a threaded hole 34 extending through the stud. A bushing $6 surrounds the screw and abuts against the thimble l5, so that when the screw is brought to a firm bearing against the end of the bushing, the stud will be firmly clamped against the thimble, preventing the lock body from turning or moving in any direction.

To provide added security against removal of the lock body from French doors and other outwardly swinging closures, plates are placed over the screw flanges i2 covering the screws Il and are secured by drive screws Il or rivets, which when set in place can only be removed by shearing them oi or drilling them out. These plates are not necessary for locks secured to the inner side of inwardly opening doors as the stud Il and bolt i1 (when shot to locked position) 4prevent removal of the lock.

The operation of the lock herein described is simple, the parts are small but sufficiently strong for the purpose, and are easy to install.

'I'he body, sleeve and key are readily made by die-casting processes to the necessary degree of accuracy for this type of lock cheaply and in a large number of combinations. The bolt is preferably made of a grade of steel that can be hardened, as slight warping will not interfere with its proper operation. The bolt and body are strong and the bearings of the bolt in the body and socket or thimble in the door frame are substantial; and the body is firmly seated in the sockets or thimbles in the door style by the studs so as to prevent jimmying or forcing by means ordinarily available.

The invention is not restricted to the uses, construction details and materials described.

I claim the following as my invention:

1. A rim lock comprising a body having a cylindrical stud projecting from its base and adapted to fit in a corresponding hole in the door style, and a sliding bolt projectable from the body at one side in a direction at right angles to the axis of said stud to engage in a corresponding shaped socket in the door frame, said stud and bolt being of substantially equivalent bending and shearing strength, whereby said body is fixedly secured to the door and frame by its stud and said bolt when the bolt is in projected position.

2. A rim lock comprising a body having a cylindrical stud projecting from its base and adapted to fit in a corresponding hole in the door style, and a sliding bolt projectable from the body at one side in a direction at right angles to the axis of said stud to engage in a corresponding shaped socket in the 'door frame, and means for retaining said bolt in projected position, said body being nxedly secured by its stud and said bolt when the bolt is in projected position. i

3. A1 sash-lock comprising a tubular casing having an internal shoulder at its sash meeting end, a sleeve secured in the casing at its other end and providing an internal abutment spaced from said end, said sleeve being channelled to provide a generally longitudinal slot terminating boltingposition, an abutment on said bolt lying in spaced relation to said shoulder internally of said casing, a coiled compression spring between said last named abutment and shoulder, a pin in said bolt positioned for movement in the slot and into engagement with the abutment provided by said sleeve, retracting movement of said bolt being stopped by interengagement of said pin and said abutment, and means providing for said interengagement by a turning means to effect alignment or misalignment of the pin with the slot to retain said' bolt in or release it from retraction from its projected position.

4. A sash-lock according to claim 3 in which said sleeve is channelled substantially throughout its length and provides said internal abutment by its inner end.

5. A sash-lock according to claim 3 in which said abutment is formed with a notch adapted to be engaged by a part of said bolt assembly to limit turning movement of said bolt in projected position.

6. A rim lock comprising a body provided with a base, a stud projecting from the base, a barrel having its axis transverse to that of the stud, a bolt slidable and rotatable in said barrel and projectable from one end thereof, the other end of the barrel being open to receive actuating means, a sleeve secured within said barrel surrounding the inner end of the bolt, and means carried by said bolt cooperating with said sleeve for locking said bolt in projected position, whereby said body is secured by said bolt and stud against removal when said boltis in projected position.

7. A rim lock comprising a body provided with a base, a stud projecting from the base. a bolt guide having its axis transverse to that of the stud, a bolt slidable in said bolt guide and projectable from one end of said body, the other end oi.' the body being open to receive actuating means, a sleeve'scured within said body surrounding the inner end of the bolt, and means carried by said bolt cooperating with said sleeve for locking said bolt in projected position, whereby said body is secured by said bolt and stud against removal when the bolt is in projected position.

8. 'In a universal rim lock of the character described for securing two relatively movable members, a body having a stud projecting therefrom adapted to t snugly all around its side walls in a corresponding socket in the lock supporting member, a bolt projectable from said body in a direction transverse to the axis of said stud to engage in a corresponding socket in the other member, and means for locking said bolt in projected position, whereby when said bolt is in projected position said lock is irremovably secured both to said supporting and other member.

9. In a universal rim lock of the character described for securing two relatively movable members, a body having a stud projecting therefrom adapted to fit snugly all around its side walls in a corresponding socket in the lock supporting member, a boit projectable from said body in a direction transverse to the. axis of said stud to engage in a corresponding socket in the other member, and key actuated means for locking said bolt in projected position, whereby when said bolt is in projected position said lock is irremovably secured both to said supporting and other member.

10. A rim lock for doors comprising a body provided with a base. a stud projecting from the base and adapted to nt snugly in a corresponding opening in thedoor, a bolt guide having its axis transverse to that of the stud, a bolt sllidable in said bolt guide and proiectabie from one endo! said body, the other end of the body being open to receive actuating means, means within said body adjacent to the inner end ot the bolt. and

means carried by said bolt cooperating with said means for locking said bolt in projected position. whereby said body is secured by said bolt and stud against removal when the bolt is in projected position.

HERMAN H. KISTNER. 

